80449289216 has 44 divisors (see below), whose sum is σ = 162412500840. Its totient is φ = 39826329600.

The previous prime is 80449289203. The next prime is 80449289279. The reversal of 80449289216 is 61298294408.

It is a happy number.

It is a super-2 number, since 2×80449289216² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285506 + ... + 492353.

Almost surely, 2^80449289216 is an apocalyptic number.

It is an amenable number.

80449289216 is an abundant number, since it is smaller than the sum of its proper divisors (81963211624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80449289216 is a wasteful number, since it uses less digits than its factorization.

80449289216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777980 (or 777962 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 80449289216 in words is "eighty billion, four hundred forty-nine million, two hundred eighty-nine thousand, two hundred sixteen".